US2997240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air conditioning system mixing valve
Assignee: Buensod Stacey Corp
•
Filing: 1957-09-23
•
Granted: 1961-08-22
•
Expires: 1977-09-23
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Kreuttner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:56
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/044; F24F3/048; F24F3/052; F24F3/0522
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1087908A
Cited
US1076293A
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GB253317A
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US1819045A
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US1869663A
Cited
US1846698A
Cited
US1847911A
Cited
US1986429A
Cited
US2019724A
Cited
US2308861A
Cited
US2720151A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-21 | 1965-02-20 | 1965-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-21 | 1969-02-20 | 1969-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-21 | 1973-02-20 | 1973-08-22 | $7700.00 | Window Closed / Lapsed |